A = (1.58, -0.85)
B = (6.816, -4.59)
j = Line(A, B)
F = (5.474, 0.602)
D = Point(j)
f = OrthogonalLine(D, j)
g = LineBisector(D, F)
P = Intersect(f, g)
h = Segment(F, P)
i = Segment(D, P)
α = Angle(j, i)
tekst1: "FP=" + (LaTeX[h]) + "\; ja \; DP=" + (LaTeX[i]) + "⇒FP=DP"